Car A and car B were both traveling at 15 m/s. Car A slowed to a stop in 5 seconds. Car B came to a stop in 3 seconds. Which car received a greater force to stop?

(1pts)

Question 13 - Car A and car B were both traveling at 15 m/s. Car A slowed to a stop in 5 seconds. Car B came to a stop in 3 seconds. Which car received a greater force to stop?

	Car A
	Car B
	impossible to predict
	None of the above

14)

A 10kg object in space travels at 200 m/s. The force required to keep it moving at 200 m/s is

(1pts)

Question 14 - A 10kg object in space travels at 200 m/s. The force required to keep it moving at 200 m/s is

	0N
	10N
	20N
	200N

15)

Two objects are separated by a certain distance. They are moved apart so that they are now separated 2x further away from each other. The gravitational force acting on the two objects is now ______ as it was before.

(1pts)

Question 15 - Two objects are separated by a certain distance. They are moved apart so that they are now separated 2x further away from each other. The gravitational force acting on the two objects is now ______ as it was before.

	2x
	4x
	6x
	1/2x
	1/4x
	1/6x

16)

If you lifted a bowling ball that has a weight of 50N to a height of 1.5 m in 3 seconds, how much power did that take? (Include Units in your answer)

(1pts)

Question 16 - If you lifted a bowling ball that has a weight of 50N to a height of 1.5 m in 3 seconds, how much power did that take? (Include Units in your answer)

Enter your answer

17)

A sailboat travels at 3 m/s for 20 minutes. How far does it travel in km? (1000m = 1km; 1 min = 60 s)

(1pts)

Question 17 - A sailboat travels at 3 m/s for 20 minutes. How far does it travel in km? (1000m = 1km; 1 min = 60 s)

	3.6 km
	360 km
	3600 km
	None of the above

18)

From the same height, you simultaneously drop a lightweight tennis ball and a heavyweight bowling ball. When they hit the floor, they have the same ___.

(1pts)

Question 18 - From the same height, you simultaneously drop a lightweight tennis ball and a heavyweight bowling ball. When they hit the floor, they have the same ___.

	Speed
	Kinetic Energy
	Momentum
	All of the above
	None of the above

19)

How much work does it take to lift a 5kg bowling ball up a height of 1.5 m? (Include units in your answer)(g= 9.8m/s^2)

(1pts)

Question 19 - How much work does it take to lift a 5kg bowling ball up a height of 1.5 m? (Include units in your answer)(g= 9.8m/s^2)

Enter your answer

20)

Car A and B both have a mass of 700kg. Car A is traveling at 7m/s. Car B travels in the opposite direction at -4 m/s. Car A collides with Car B and the Cars stick together. What is the momentum of Car A before the collision? (include units in your answer)

(1pts)

Question 20 - Car A and B both have a mass of 700kg. Car A is traveling at 7m/s. Car B travels in the opposite direction at -4 m/s. Car A collides with Car B and the Cars stick together. What is the momentum of Car A before the collision? (include units in your answer)

Enter your answer

21)

A boy pulls on a 2.5kg rope with a 150N force to the left and a girl pulls on the same rope with a force of 250N to the right. What is the magnitude and direction of the acceleration of the rope?

(1pts)

Question 21 - A boy pulls on a 2.5kg rope with a 150N force to the left and a girl pulls on the same rope with a force of 250N to the right. What is the magnitude and direction of the acceleration of the rope?

	40 m/s^2 to the left
	160 m/s^2 to the left
	40 m/s^2 to the right
	160 m/s^2 to the right
	None of the above

22)

Why does an astronaut experience weightlessness while in orbit around the earth?

(1pts)

Question 22 - Why does an astronaut experience weightlessness while in orbit around the earth?

	she is above the earth's atmosphere
	she is in freefall
	gravity does not act on her
	None of the above

23)

The velocity of an object triples. Its kinetic energy is ___

(1pts)

Question 23 - The velocity of an object triples. Its kinetic energy is ___

	3x as much KE as before
	6x as much KE as before
	9x as much KE as before
	None of the above

24)

Compare the inertia of a 5kg object on the Earth versus the same 5kg object on the moon.

(1pts)

Question 24 - Compare the inertia of a 5kg object on the Earth versus the same 5kg object on the moon.

	The object has more inertia on the Earth
	The object has more inertia on the Moon
	The object has the same inertia on both the Earth and the Moon
	None of the above

25)

A boy pulls on a 2.5kg rope with a 175N force to the left and a girl pulls on the same rope with a force of 300N to the right. What is the net force acting on the rope?

(1pts)

Question 25 - A boy pulls on a 2.5kg rope with a 175N force to the left and a girl pulls on the same rope with a force of 300N to the right. What is the net force acting on the rope?

	475N to the left
	125N to the left
	125N to the right
	475N to the right
	None of the above

26)

How much kinetic energy does a 3000 g object while traveling at 10 m/s? (Note that 1000g = 1kg)

(1pts)

Question 26 - How much kinetic energy does a 3000 g object while traveling at 10 m/s? (Note that 1000g = 1kg)

Enter your answer

27)

A truck runs into a bug on the interstate. Compare the force the truck applies to the bug to the force the bug applies to the truck.

(1pts)

Question 27 - A truck runs into a bug on the interstate. Compare the force the truck applies to the bug to the force the bug applies to the truck.

	The truck applies a greater force on the bug
	The bug applies a greater force on the truck
	The bug and the truck apply equal amounts of force
	None of the above

28)

Compare the weight of a 5 kg object on the Earth vs. the Moon.

(1pts)

Question 28 - Compare the weight of a 5 kg object on the Earth vs. the Moon.

	The object weighs more on the Earth
	The object weighs more on the Moon
	The object weighs the same on the Earth and the Moon
	None of the above

29)

A 10kg object in space travels at 200 m/s. The force required to keep it moving at 200 m/s is

(1pts)

Question 29 - A 10kg object in space travels at 200 m/s. The force required to keep it moving at 200 m/s is

	0N
	10N
	20N
	200N

30)

Object A has a mass of 10kg. Object B has a mass of 5kg. To give these objects the same acceleration, we would have to push with ___.

(1pts)

Question 30 - Object A has a mass of 10kg. Object B has a mass of 5kg. To give these objects the same acceleration, we would have to push with ___.

	2x more force to object A than to object B
	2x more force to object B than to object A
	5x more force to object A than to object B
	5x more force to object B than to object A

31)

A particle in space is traveling at a constant velocity of 20 m/s. It receives a 10N force in the same direction as its motion. The particle ___.

(1pts)

Question 31 - A particle in space is traveling at a constant velocity of 20 m/s. It receives a 10N force in the same direction as its motion. The particle ___.

	slows down
	speeds up
	immediately stops
	stays the same speed
	None of the above

32)

Object A and B have the same mass. Object A is four times as high above the ground as Object B. Which of the following is true?

(1pts)

Question 32 - Object A and B have the same mass. Object A is four times as high above the ground as Object B. Which of the following is true?

	Object A has 2x the PE as object B
	Object A has 4x the PE as object B
	Object A has 16x the PE as object B
	Object A has 1/2x the PE as object B
	Object A has 1/4 the PE as object B
	Object A has 1/16 the PE as object B

33)

A boy pulls on a 2.5kg rope with a 150N force to the left and a girl pulls on the same rope with a force of 250N to the right. What is the net force acting on the rope?

(1pts)

Question 33 - A boy pulls on a 2.5kg rope with a 150N force to the left and a girl pulls on the same rope with a force of 250N to the right. What is the net force acting on the rope?

	400N to the right
	100N to the right
	400N to the left
	100N to the left
	None of the above

34)

A 10kg object and a 20 kg object are released from the same height at the same time. Which object hits the ground first? (ignore air resistance and friction)

(1pts)

Question 34 - A 10kg object and a 20 kg object are released from the same height at the same time. Which object hits the ground first? (ignore air resistance and friction)

	10kg object
	20kg object
	both at the same time

35)

A 10kg object and a 20 kg object are released from the same height at the same time. Which object hits the ground first? (ignore air resistance and friction)

(1pts)

Question 35 - A 10kg object and a 20 kg object are released from the same height at the same time. Which object hits the ground first? (ignore air resistance and friction)

	10kg object
	20kg object
	both at the same time

36)

While a car travels in a circular track at a constant speed, ___

(1pts)

Question 36 - While a car travels in a circular track at a constant speed, ___

	It is accelerating
	it has a constant velocity
	All of the above
	None of the above

37)

How much work does it take to lift a 7kg bowling ball up a height of 0.75 m? (Include units in your answer)(g= 9.8m/s^2)

(1pts)

Question 37 - How much work does it take to lift a 7kg bowling ball up a height of 0.75 m? (Include units in your answer)(g= 9.8m/s^2)

Enter your answer

38)

A particle in space is traveling at a constant velocity of 20 m/s. It receives a 10N force opposing its motion. The particle ___.

(1pts)

Question 38 - A particle in space is traveling at a constant velocity of 20 m/s. It receives a 10N force opposing its motion. The particle ___.

	slows down
	immediately stops
	speeds up
	None of the above

39)

Two objects are separated by a certain distance. The mass of one of the objects increases by 3 times. The gravitational force acting on the two objects is now _____ as it was before

(1pts)

Question 39 - Two objects are separated by a certain distance. The mass of one of the objects increases by 3 times. The gravitational force acting on the two objects is now _____ as it was before

	3x
	6x
	9x
	1/3x
	1/6x
	1/9x

40)

Car A and B both have a mass of 700kg. Car A is traveling at 7m/s. Car B travels in the opposite direction at -4 m/s. Car A collides with Car B and the Cars stick together. What is the momentum of Car B before the collision? (include units in your answer)

(1pts)

Question 40 - Car A and B both have a mass of 700kg. Car A is traveling at 7m/s. Car B travels in the opposite direction at -4 m/s. Car A collides with Car B and the Cars stick together. What is the momentum of Car B before the collision? (include units in your answer)

Enter your answer

41)

A sailboat travels at 6 m/s for 14 minutes. How far does it travel? (60 s = 1 min)

(1pts)

Question 41 - A sailboat travels at 6 m/s for 14 minutes. How far does it travel? (60 s = 1 min)

	2.3 m
	84 m
	140 m
	5040 m
	None of the above

42)

Compare the weight of a 5kg object on the Earth vs. the Moon.

(1pts)

Question 42 - Compare the weight of a 5kg object on the Earth vs. the Moon.

	The object weighs more on the Earth
	The object weighs more on the Moon
	The object weighs the same on the Earth and the Moon
	None of the above

Car A and car B were both traveling at 15 m/s. Car A slowed to a stop in 5 seconds. Car B came to a stop in 3 seconds. Which car received a greater force to stop?

(1pts)

Question 13 - Car A and car B were both traveling at 15 m/s. Car A slowed to a stop in 5 seconds. Car B came to a stop in 3 seconds. Which car received a greater force to stop?

	Car A
	Car B
	impossible to predict
	None of the above

14)

A 10kg object in space travels at 200 m/s. The force required to keep it moving at 200 m/s is

(1pts)

Question 14 - A 10kg object in space travels at 200 m/s. The force required to keep it moving at 200 m/s is

	0N
	10N
	20N
	200N

15)

Two objects are separated by a certain distance. They are moved apart so that they are now separated 2x further away from each other. The gravitational force acting on the two objects is now ______ as it was before.

(1pts)

Question 15 - Two objects are separated by a certain distance. They are moved apart so that they are now separated 2x further away from each other. The gravitational force acting on the two objects is now ______ as it was before.

	2x
	4x
	6x
	1/2x
	1/4x
	1/6x

16)

If you lifted a bowling ball that has a weight of 50N to a height of 1.5 m in 3 seconds, how much power did that take? (Include Units in your answer)

(1pts)

Question 16 - If you lifted a bowling ball that has a weight of 50N to a height of 1.5 m in 3 seconds, how much power did that take? (Include Units in your answer)

Enter your answer

17)

A sailboat travels at 3 m/s for 20 minutes. How far does it travel in km? (1000m = 1km; 1 min = 60 s)

(1pts)

Question 17 - A sailboat travels at 3 m/s for 20 minutes. How far does it travel in km? (1000m = 1km; 1 min = 60 s)

	3.6 km
	360 km
	3600 km
	None of the above

18)

From the same height, you simultaneously drop a lightweight tennis ball and a heavyweight bowling ball. When they hit the floor, they have the same ___.

(1pts)

Question 18 - From the same height, you simultaneously drop a lightweight tennis ball and a heavyweight bowling ball. When they hit the floor, they have the same ___.

	Speed
	Kinetic Energy
	Momentum
	All of the above
	None of the above

19)

How much work does it take to lift a 5kg bowling ball up a height of 1.5 m? (Include units in your answer)(g= 9.8m/s^2)

(1pts)

Question 19 - How much work does it take to lift a 5kg bowling ball up a height of 1.5 m? (Include units in your answer)(g= 9.8m/s^2)

Enter your answer

20)

Car A and B both have a mass of 700kg. Car A is traveling at 7m/s. Car B travels in the opposite direction at -4 m/s. Car A collides with Car B and the Cars stick together. What is the momentum of Car A before the collision? (include units in your answer)

(1pts)

Question 20 - Car A and B both have a mass of 700kg. Car A is traveling at 7m/s. Car B travels in the opposite direction at -4 m/s. Car A collides with Car B and the Cars stick together. What is the momentum of Car A before the collision? (include units in your answer)

Enter your answer

21)

A boy pulls on a 2.5kg rope with a 150N force to the left and a girl pulls on the same rope with a force of 250N to the right. What is the magnitude and direction of the acceleration of the rope?

(1pts)

Question 21 - A boy pulls on a 2.5kg rope with a 150N force to the left and a girl pulls on the same rope with a force of 250N to the right. What is the magnitude and direction of the acceleration of the rope?

	40 m/s^2 to the left
	160 m/s^2 to the left
	40 m/s^2 to the right
	160 m/s^2 to the right
	None of the above

22)

Why does an astronaut experience weightlessness while in orbit around the earth?

(1pts)

Question 22 - Why does an astronaut experience weightlessness while in orbit around the earth?

	she is above the earth's atmosphere
	she is in freefall
	gravity does not act on her
	None of the above

23)

The velocity of an object triples. Its kinetic energy is ___

(1pts)

Question 23 - The velocity of an object triples. Its kinetic energy is ___

	3x as much KE as before
	6x as much KE as before
	9x as much KE as before
	None of the above

24)

Compare the inertia of a 5kg object on the Earth versus the same 5kg object on the moon.

(1pts)

Question 24 - Compare the inertia of a 5kg object on the Earth versus the same 5kg object on the moon.

	The object has more inertia on the Earth
	The object has more inertia on the Moon
	The object has the same inertia on both the Earth and the Moon
	None of the above

25)

A boy pulls on a 2.5kg rope with a 175N force to the left and a girl pulls on the same rope with a force of 300N to the right. What is the net force acting on the rope?

(1pts)

Question 25 - A boy pulls on a 2.5kg rope with a 175N force to the left and a girl pulls on the same rope with a force of 300N to the right. What is the net force acting on the rope?

	475N to the left
	125N to the left
	125N to the right
	475N to the right
	None of the above

26)

How much kinetic energy does a 3000 g object while traveling at 10 m/s? (Note that 1000g = 1kg)

(1pts)

Question 26 - How much kinetic energy does a 3000 g object while traveling at 10 m/s? (Note that 1000g = 1kg)

Enter your answer

27)

A truck runs into a bug on the interstate. Compare the force the truck applies to the bug to the force the bug applies to the truck.

(1pts)

Question 27 - A truck runs into a bug on the interstate. Compare the force the truck applies to the bug to the force the bug applies to the truck.

	The truck applies a greater force on the bug
	The bug applies a greater force on the truck
	The bug and the truck apply equal amounts of force
	None of the above

28)

Compare the weight of a 5 kg object on the Earth vs. the Moon.

(1pts)

Question 28 - Compare the weight of a 5 kg object on the Earth vs. the Moon.

	The object weighs more on the Earth
	The object weighs more on the Moon
	The object weighs the same on the Earth and the Moon
	None of the above

29)

A 10kg object in space travels at 200 m/s. The force required to keep it moving at 200 m/s is

(1pts)

Question 29 - A 10kg object in space travels at 200 m/s. The force required to keep it moving at 200 m/s is

	0N
	10N
	20N
	200N

30)

Object A has a mass of 10kg. Object B has a mass of 5kg. To give these objects the same acceleration, we would have to push with ___.

(1pts)

Question 30 - Object A has a mass of 10kg. Object B has a mass of 5kg. To give these objects the same acceleration, we would have to push with ___.

	2x more force to object A than to object B
	2x more force to object B than to object A
	5x more force to object A than to object B
	5x more force to object B than to object A

31)

A particle in space is traveling at a constant velocity of 20 m/s. It receives a 10N force in the same direction as its motion. The particle ___.

(1pts)

Question 31 - A particle in space is traveling at a constant velocity of 20 m/s. It receives a 10N force in the same direction as its motion. The particle ___.

	slows down
	speeds up
	immediately stops
	stays the same speed
	None of the above

32)

Object A and B have the same mass. Object A is four times as high above the ground as Object B. Which of the following is true?

(1pts)

Question 32 - Object A and B have the same mass. Object A is four times as high above the ground as Object B. Which of the following is true?

	Object A has 2x the PE as object B
	Object A has 4x the PE as object B
	Object A has 16x the PE as object B
	Object A has 1/2x the PE as object B
	Object A has 1/4 the PE as object B
	Object A has 1/16 the PE as object B

33)

A boy pulls on a 2.5kg rope with a 150N force to the left and a girl pulls on the same rope with a force of 250N to the right. What is the net force acting on the rope?

(1pts)

Question 33 - A boy pulls on a 2.5kg rope with a 150N force to the left and a girl pulls on the same rope with a force of 250N to the right. What is the net force acting on the rope?

	400N to the right
	100N to the right
	400N to the left
	100N to the left
	None of the above

34)

A 10kg object and a 20 kg object are released from the same height at the same time. Which object hits the ground first? (ignore air resistance and friction)

(1pts)

Question 34 - A 10kg object and a 20 kg object are released from the same height at the same time. Which object hits the ground first? (ignore air resistance and friction)

	10kg object
	20kg object
	both at the same time

35)

A 10kg object and a 20 kg object are released from the same height at the same time. Which object hits the ground first? (ignore air resistance and friction)

(1pts)

Question 35 - A 10kg object and a 20 kg object are released from the same height at the same time. Which object hits the ground first? (ignore air resistance and friction)

	10kg object
	20kg object
	both at the same time

36)

While a car travels in a circular track at a constant speed, ___

(1pts)

Question 36 - While a car travels in a circular track at a constant speed, ___

	It is accelerating
	it has a constant velocity
	All of the above
	None of the above

37)

How much work does it take to lift a 7kg bowling ball up a height of 0.75 m? (Include units in your answer)(g= 9.8m/s^2)

(1pts)

Question 37 - How much work does it take to lift a 7kg bowling ball up a height of 0.75 m? (Include units in your answer)(g= 9.8m/s^2)

Enter your answer

38)

A particle in space is traveling at a constant velocity of 20 m/s. It receives a 10N force opposing its motion. The particle ___.

(1pts)

Question 38 - A particle in space is traveling at a constant velocity of 20 m/s. It receives a 10N force opposing its motion. The particle ___.

	slows down
	immediately stops
	speeds up
	None of the above

39)

Two objects are separated by a certain distance. The mass of one of the objects increases by 3 times. The gravitational force acting on the two objects is now _____ as it was before

(1pts)

Question 39 - Two objects are separated by a certain distance. The mass of one of the objects increases by 3 times. The gravitational force acting on the two objects is now _____ as it was before

	3x
	6x
	9x
	1/3x
	1/6x
	1/9x

40)

Car A and B both have a mass of 700kg. Car A is traveling at 7m/s. Car B travels in the opposite direction at -4 m/s. Car A collides with Car B and the Cars stick together. What is the momentum of Car B before the collision? (include units in your answer)

(1pts)

Question 40 - Car A and B both have a mass of 700kg. Car A is traveling at 7m/s. Car B travels in the opposite direction at -4 m/s. Car A collides with Car B and the Cars stick together. What is the momentum of Car B before the collision? (include units in your answer)

Enter your answer

41)

A sailboat travels at 6 m/s for 14 minutes. How far does it travel? (60 s = 1 min)

(1pts)

Question 41 - A sailboat travels at 6 m/s for 14 minutes. How far does it travel? (60 s = 1 min)

	2.3 m
	84 m
	140 m
	5040 m
	None of the above

42)

Compare the weight of a 5kg object on the Earth vs. the Moon.

(1pts)

Question 42 - Compare the weight of a 5kg object on the Earth vs. the Moon.

	The object weighs more on the Earth
	The object weighs more on the Moon
	The object weighs the same on the Earth and the Moon
	None of the above